In true
Billy Boat Performance Exhaust fashion,
B&B has expanded their already large
Audi line with the addition of a newly
designed system for the all new Audi A4.
Manufactured using only the
highest grade
T304 stainless steel
materials available the full 2-1/2”
system is a direct replacement for the
restrictive factory system providing
increases in both horsepower and torque.
Hand fabricated
mufflers incorporating B&B’s
unique Purge Resonance Technology (PRT)
give the A4 a distinct exhaust note that
is louder than the stock yet pleasing to
the ear. Billy Boat Performance Exhaust
offers a touring system or a sport
version that replaces the center
resonator with a hand fabricated x-pipe for
the owner that is looking for a louder,
more aggressive note. To finish the
system off B&B uses a
twin tip design
using 3.5” round double wall
tips for a look that is pleasing to any
enthusiast’s eye. With the system being
an after cat design it is 50 state
emissions legal and is backed by B&B’s
limited
LIFETIME WARRANTY!

Customer ReviewsModbargains was a pleasure
to deal with and cut me a
great deal. Jason was very
helpful and informative
through the entire process.
I could have gone with a Magnaflow system to save
some coin, but I really like
the sound of the B&B setup I
saw in some Youtube videos.
The system went on great and
there weren't any fitment
issues at all.
-[email protected]